Home / 20,308.44-30,459.15-5,518.56

Finding the Fourth Proportional to 20,308.44, 30,459.15 and 5,518.56

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Solution

The fourth proportional to 20,308.44, 30,459.15 and 5,518.56 is: 8,276.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.44 : 30,459.15 = 5,518.56 : x
  2. Step 2: Convert to fraction form
    20,308.44/30,459.15 = 5,518.56/x
  3. Step 3: Cross multiply
    20,308.44x = 30,459.15 × 5,518.56
  4. Step 4: Simplify right side
    20,308.44x = 168,090,646.82
  5. Step 5: Solve for x
    x = 168,090,646.82/20,308.44
  6. Step 6: Final answer
    x = 8,276.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.